Revert "ARM: 8846/1: warn if divided syntax assembler is used"

Revert "ARM: 8846/1: warn if divided syntax assembler is used"

This reverts commit c59740c48581a774a683a718b7a25bea4aa5e59f.

GCC 4.7, which is still permitted, emits code using the original
syntax.  This means we end up with lots of assembler warnings when
building with a currently-supported version of gcc.

Revert the commit (with fixups to keep the follow-on -mauto-it
change) to avoid these warnings.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>